How to use Jackson to deserialise an array of objects
first create a mapper :
import com.fasterxml.jackson.databind.ObjectMapper;
ObjectMapper mapper = new ObjectMapper();
As Array:
MyClass[] myObjects = mapper.readValue(json, MyClass[].class);
As List:
List<MyClass> myObjects = mapper.readValue(jsonInput, new com.fasterxml.jackson.core.type.TypeReference<List<MyClass>>(){});
Another way to specify the List type:
List<MyClass> myObjects = mapper.readValue(jsonInput, mapper.getTypeFactory().constructCollectionType(List.class, MyClass.class));
How to use Jackson to deserialise an array of objects的更多相关文章
- Array of Objects
You should be comfortable with the content in the modules up to and including the module "Array ...
- Jackson转换为Collection、Array
1. Jackson转化为Array 注意的地方就是实体类一定要有无参的构造方法,否则会报异常 //com.fasterxml.jackson.databind.exc.InvalidDefiniti ...
- Why does typeof array with objects return “Object” and not “Array”?
https://stackoverflow.com/questions/4775722/check-if-object-is-an-array One of the weird behaviour a ...
- The method below converts an array of objects to a DataTable object in C#.
http://www.c-sharpcorner.com/blogs/dynamic-objects-conveting-into-data-table-in-c-sharp1 public stat ...
- TypeReference -- 让Jackson Json在List/Map中识别自己的Object
private Map<String, Object> buildHeaders(Object params) { ObjectMapper objectMapper = JacksonH ...
- Co-variant array conversion from x to y may cause run-time exception
http://stackoverflow.com/questions/8704332/co-variant-array-conversion-from-x-to-y-may-cause-run-tim ...
- [JavaScript] Array.prototype.reduce in JavaScript by example
Let's take a closer look at using Javascript's built in Array reduce function. Reduce is deceptively ...
- iOS 判断数组array中是否包含元素a,取出a在array中的下标+数组方法详解
目前找到来4个解决办法,第三个尤为简单方便 NSArray * arr = @["]; //是否包含 "]) { NSInteger index = [arr indexOfObj ...
- PHP 根据对象属性进行对象数组的排序(usort($your_data, "cmp");)(inside the class: usort($your_data, array($this, "cmp")))
PHP 根据对象属性进行对象数组的排序(usort($your_data, "cmp");)(inside the class: usort($your_data, array($ ...
随机推荐
- A - A Secret (扩展kmp)
题目链接:https://cn.vjudge.net/contest/283743#problem/A 题目大意:给你字符串s1和s2,然后问你s2的每一个后缀在s1中出现的次数之和(可重叠). 具体 ...
- mysql一次查询,返回多个统计结果
1.sum(if) select sum(if(status=1,1,0)) as s1_count,sum(if(status=2,1,0)) as s2_countfrom order; 2.co ...
- SRS+flv.js打造兼容性较高的直播、点播平台
**************************************************************************************************** ...
- 使用 GDebi 默认代替 Ubuntu 软件中心
GDebi,一个安装 Debian 可执行文件的专用程序.它极其轻量,且专注于安装 .deb 文件,可以自动解决依赖问题,比原生的好用.GDebi 最有用的功能是它也可以为你展示出将要安装的程序的依赖 ...
- How to Repair GRUB2 When Ubuntu Won’t Boot
Ubuntu and many other Linux distributions use the GRUB2 boot loader. If GRUB2 breaks—for example, if ...
- expdp和impdp导入和导出数据
一 关于expdp和impdp 使用EXPDP和IMPDP时应该注意的事项:EXP和IMP是客户端工具程序,它们既可以在客户端使用,也可以在服务端使用.EXPDP和IMPDP是服务端的工具程 ...
- 安装jdk的时候为什么会有两个jre文件
有些东西,你懂不懂其实并不太影响你干活,但有些人就是有疑惑就非得弄懂,不然浑身难受,我大概就是这种德性的.昨天安装javaSE的时候,看到jdk中有个jre文件夹,而根目录下又有个jre文件夹,非常困 ...
- shell编程之helloworld
/bin/sh与/bin/bash的区别sh:如果前面有语句报错,则报错语句后面的命令不执行bash:如果前面有语句报错,后面的命令也会执行sh跟bash的区别,实际上就是bash有没有开启posix ...
- Ex 6_3 修建酒店所获得的利润..._第五次作业
假设profit[i]为在前i个位置修建酒店所获得的最大利润,当i=0时,profit[0]=0.当i>0时,若j为上一个满足m[i]-m[j]k的位置.若profit[i-1]>prof ...
- bootgrid 刷新保持当前排序
1. 前言 主要是利用了HTHNL5的localStorage技术和用ajax传输一个数组到后台并进行判断.这篇文章是解决一个小需求而来的,主要是用来记录. 2. 代码 JavaScript: var ...